Public opinion on a Southern-border wall in the U.S., by political party 2020

In 2020, 86 percent of surveyed Republicans said that they were in favor of building a wall along the U.S.-Mexico border in order to try to stop illegal immigration. In comparison, 36 percent of Independents and 79 percent of Democrats opposed building a wall along the southern border. Immigration figures Building a wall along the U.S.-Mexico border to stop illegal immigration was a major promise of President Donald Trump’s 2016 presidential campaign. President Trump maintains that a wall would stop illegal immigration into the U.S., despite the fact that in 2016, the majority of undocumented migrant arrivals occurred by overstaying visas rather than passing unchecked through a border. The 2019 government shutdown At the end of 2018, President Trump demanded that Congress pass a federal appropriations bill including almost six billion U.S. dollars in order to fund construction of a border wall, which Congress refused to do. This triggered a lapse in federal funding, causing the longest government shutdown in American history, at 35 days long.

于2020年，86%的受访共和党人表示支持在美国与墨西哥边境修建一道墙体以试图阻止非法移民。相较之下，36%的独立人士和79%的民主党人反对在南部边境修建墙体。移民数据表明，修建一道沿美国-墨西哥边境的墙体以阻止非法移民曾是唐纳德·特朗普总统2016年总统竞选的重要承诺。特朗普总统坚称，墙体将阻止非法移民进入美国，尽管在2016年，大多数无证移民的到达是通过签证逾期而非未经检查的边境。2019年政府关门事件在2018年底，特朗普总统要求国会通过一项联邦拨款法案，其中包括近60亿美元的款项以资助边境墙的建设，但国会拒绝了这个要求。这一事件引发了联邦资金的短缺，导致美国历史上持续时间最长的政府关门，持续了35天。